All Questions
4
questions
2
votes
2
answers
2k
views
SIM800L V2 not responding to AT Commands from Putty over USB-To-TTL PL2303
My SIM800L V2 RoHS (the blue one) although it connects to the network and registers just fine, it's not responding to AT commands sent over the PL2303 (USB-STC-ISP) USB-To-TTL Adapter through which it'...
- 21
0
votes
1
answer
1k
views
Why cannot I use the USB port directly to communicate via PC with STM32F4-DISC
I will keep it short and clean, if it won't be enough please let me know and add more details.
When using an Arduino UNO, a serial communication can be achieved by the same USB connection which is ...
- 2,106
1
vote
2
answers
11k
views
What is difference between USB and TTL? [closed]
I have one question about USB and TTL.
Both USB and TTL works on the same voltage range (0 to +5 V), both are serial protocols. From my point of view, they are the same.
Why then we have USB to TTL ...
- 61
2
votes
5
answers
11k
views
Wiring Arduino Mini Pro with CP2102 USB to TTL
I have an Arduino Mini Pro and a CP2102 USB to TTL module as in the image below:
I couldn't find a suitable guide for the module I have. So, how should I wire them together?
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